Hammer head



FIG. 1 is a perspective view of a hammer head;

FIG. 2 is a top view of the hammer head shown in FIG. 1;

FIG. 3 is a bottom view of the hammer head shown in FIG. 1;

FIG. 4 is a rear view of the hammer head shown in FIG. 1;

FIG. 5 is a front view of the hammer head shown in FIG. 1; and,

FIG. 6 is a right side view of the hammer head shown in FIG. 1, the left side view being a mirror image thereof.

The dashed lines in FIGS. 1-6 represent a portion of the hammer head and a generic handle that form no part of the claimed design. 

CLAIM The ornamental design for a hammer head, as shown and described. 